for all the geeks out there...or just those who own iPods

My husband, instead of making the wise decision and buying an iPod, decided he wanted an M-Robe last year.

I have downloaded from iTunes a couple of songs for him and he wants to play them on his M-Robe, but it's saying it can't convert 'protected content'.

He needs them in MP3, .WAV or WMA formats to play - it won't recognise iTunes format.

Help?